401(k) · DOL Form 5500 · 2023

Western Digital Corporation 401(k) Plan

Data updated 2026-08-25

$2.2B
Total assets Very large vs avg
7,690
Participants Very large workforce
99th
Percentile by assets National rank
$289,287
Avg per participant High balance/head
PlainRetire home → About this data RSS: change history

Official DOL plan name: Western Digital Corporation 401(k) Plan · Sponsored by Western Digital Corporation · California · Manufacturing

$2.2B in assets, 7,690 participants

Western Digital Corporation's Western Digital Corporation 401(k) Plan reported $2.2B in total assets and 7,690 participants in its 2023 DOL Form 5500 filing, ranking in the 99th percentile by assets among filed plans. Figures are as reported by the plan sponsor to the Department of Labor, not audited or endorsed by PlainRetire.

  • #18,502 in Manufacturing (18,722 peers)

Coverage in California

Western Digital Corporation 401(k) Plan covers 7,690 participants in California, 12x the typical California plan (state average ~630 per filing). Assets: $2.2B.

#18,502
in Manufacturing (18,722 peers)
+11.9%
assets growth YoY
22×
vs typical plan assets (national mean)

Western Digital Corporation 401(k) Plan's outsized position by total assets

Western Digital Corporation 401(k) Plan vs every filed plan by assets

End-of-year total assets · plan year 2023 · DOL Form 5500

$2,224,615,107 Top 1% higher than 99% of 127,068 filed plans

This plan $0 $2,050,000,000 every filed plan with reported assets, bucketed by value

Dashed line + filled bar = this entry, among filed plans.

Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2023

Western Digital Corporation 401(k) Plan's large-plan peer group by participant headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Western Digital Corporation 401(k) Plan lands in the large band (7,690 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Western Digital Corporation 401(k) Plan reported net income rose from -$393M in the plan year 2022 filing to $237M in the plan year 2023 filing.
  • Western Digital Corporation 401(k) Plan end-of-year assets rose from $2.0B in the plan year 2022 filing to $2.2B in the plan year 2023 filing.
  • Western Digital Corporation 401(k) Plan reported participants fell from 7,874 in the plan year 2022 filing to 7,690 in the plan year 2023 filing.

See the national 2022→2023 release diff →

EBSA filing schedule strip

Filing strip 330956711 · Western Digital Corporation PY 2023 · 401(k)

Western Digital Corporation 401(k) Plan · $2.2B · 7,690 · 99th

  • EIN $2.2B
  • RANK 7,690
  • PHOTO 99th
  • IND 401(k)
  • EOY near Sodexo 401 (K) Employees' Retirement Savings Plan and Trust
  • 5500 ind #18502

Stamps derive from this plan's Form 5500 line items (assets, participants, type, EIN, cohort placement) - not a quality rating of the sponsor. Read with Manufacturing retirement plans → · Plans in California →

Western Digital Corporation 401(k) Plan in the asset neighbourhood

US Foods 401(k) Plan$2.2BWestern Digital Corporation 401(k) PlanWestern Digital Corporation …$2.2BSodexo 401 (K) Employees' Retirement Savings Plan and TrustSodexo 401 (K) Employees' Re…$2.2BNnpp Contractor Savings Plan$2.2BAdm 401(k) and Employee Stock Ownership Plan for Salaried EmployeesAdm 401(k) and Employee Stoc…$2.2B
End-of-year total assets ($B) among Western Digital Corporation 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

California filing particulars

Total Assets (Beginning of Year)$2.0B
Net Assets (End of Year)$2.2B
Net Income$237M
Employer EIN330956711
Plan Effective Date1984-10-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Western Digital Corporation)

Sponsor-wide plan assets over time

All Western Digital Corporation plans reported in each filing year

Latest sponsor-wide plan assets
$2.5B 24.584959934062425% vs 2022
2024 filing year
$1.8B$2B$2.2B$2.4B$2.6B 202220232024 $1.99B $2.48B ▲ +24.6%
Year Plans Participants Total Assets
2022 1 7,874 $2.0B
2023 1 7,690 $2.2B
2024 1 6,558 $2.5B

Nearby 401(k) Plans in California

Peer 401(k) plans, same state, same plan type, ranked by total assets.

Western Digital Corporation 401(k) Plan vs. nearby 401(k) plans in California, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000200000250000 -200204060 Total assets ($B) Participants Western Digital Corporation 401(k) Plan, Total assets ($B): 2.224615107 · Participants: 7690Western Digital Corporation 401(k) PlanWells Fargo & Company 401(k) Plan, Total assets ($B): 51.831350351 · Participants: 193919Wells Fargo & Company 401(k) PlanGoogle LLC 401(k) Savings Plan, Total assets ($B): 39.047152408 · Participants: 122867Google LLC 401(k) Savings PlanOracle Corporation 401(k) Savings and Investment Plan, Total assets ($B): 26.320437734 · Participants: 63105Oracle Corporation 401(k) Savings and Investment PlanIntel 401(k) Savings Plan, Total assets ($B): 22.17918189 · Participants: 59863Intel 401(k) Savings PlanApple 401(k) Plan, Total assets ($B): 19.779511539 · Participants: 106111Apple 401(k) Plan
Western Digital Corporation 401(k) Plan vs. nearby 401(k) plans in California, assets vs. participants
Compare Western Digital Corporation 401(k) Plan side-by-side with 3 peers →

Scale composition for Western Digital Corporation 401(k) Plan

Western Digital Corporation 401(k) Plan reports $2.2B in end-of-year assets across 7,690 participants (0.018% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.008% of 93,925,755 covered participants) - about $289,287 per participant (2.1x the national average assets-per-participant) . Net income for plan year 2023 was $237M.

This plan identity (EIN 330956711, plan #003) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $2.0B to $2.5B (+24.6%) while covered participants moved from 7,874 to 6,558 . Single-year sparse filers cannot show that trail.

Plan year Participants EOY assets Filing
2022 7,874 $2.0B Open filing
2023 7,690 $2.2B This page
2024 · index core 6,558 $2.5B Open filing

The same sponsor also keeps 1 other index-core plan on PlainRetire:

Western Digital Corporation 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside California, the nearest 401(k) by assets is Sodexo 401 (K) Employees' Retirement Savings Plan and Trust in MD ($2.2B); by covered participants it is Serco Inc. 401(k) Retirement Plan in VA (7,688 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($2.2B here).

Similar participant headcount

Nearest other-state filings by covered participants (7,690 participants); asset peers above are excluded.

DOL Form 5500 plan year 2023. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Western Digital Corporation 401(k) Plan assets move in 2023? ▼
Western Digital Corporation 401(k) Plan grew at a solid clip - up 11.9% during 2023, from $2.0B to $2.2B. Reported net income was $237M.
How have Western Digital Corporation plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Western Digital Corporation's sponsor-wide assets grew 24.6%, from $2.0B to $2.5B.
Where does Western Digital Corporation 401(k) Plan rank by assets among Form 5500 filers? ▼
Western Digital Corporation 401(k) Plan ranks in the 99th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (among the largest 1% of all filed plans).
Which 401(k) plans are similar in size to Western Digital Corporation 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Sodexo 401 (K) Employees' Retirement Savings Plan and Trust in MD ($2.2B, 80,121 participants).
Which 401(k) plans cover a similar participant headcount to Western Digital Corporation 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Serco Inc. 401(k) Retirement Plan in VA (7,688 participants, $661M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 330956711.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from U.S. Department of Labor Form 5500 filings (EBSA). See our methodology for details.